SINGER 319K - Manual (Page 33)

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BIGHT LEVER T, Fig. 50, regulates the width of
zigzag stitch or stitch pattern.
BIGHT SCALE is marked "0” to "5”. Each line
between '"0” and "5” denotes the width of stitch pat­
tern obtainable up to a maximum of approximately
he inch.
BIGHT INDICATOR. Arrow V is the mark to
which the desired point on the bight scale is set.
ZERO BIGHT is synonymous with straight stitching.
MAXIMUM BIGHT. The machine will sew the
maximum width of stitch or stitch pattern when bight
lever is set at "5”, approximately he inch.
MAXIMUM BIGHT STOP SCREW X restricts
the movement of the bight lever to a maximum width
of stitch less than 5 when set at a given position.
INTERMEDIATE BIGHT REGULATOR
SCREW U, Fig. 51, acts as an intermediate spring-
stop for a desired minimum bight. This spring-stop
can be passed over to zero bight if desired.
These stops allow you to operate the bight lever
manually between set positions without continual
reference to the dial while sewing. For example: To
limit zigzag stitching between 'T” and "4”, set bight
lever at ''4”, loosen MAXIMUM BIGHT LEVER
STOP SCREW X, then tighten. To set minimum
position 'T”, set bight lever so that arrow V is at *T”,
loosen INTERMEDIATE BIGHT REGULATOR
SCREW U and move it up or down until you feel the
notch engaged, then tighten screw U. The bight lever
is now set to limit the maximum bight at "4” and the
minimum at "1”. Other limits such as *T” and **3”
or and "3” can be obtained in the same manner,
see Fig. 51.
When free movement of the bight lever is desired
between zero and a given bight, screw U should be
moved down as far as it will go and then securely
tightened. Screw X is used to limit the maximum
bight.
CAUTION: When Straight Stitching Throat Plate
105268 is used, bight lever T must be set at 0,
needle must be set at central position, and all
stitch levers must be down.
Do not make any zigzag stitch, needle position
or stitch lever adjustments while needle is in
material.